HAK, Ishak. THE EFFECTIVENESS OF COOPERATIVE LEARNING NUMBER HEAD TOGETHER IN ENGLISH SUBJECT IN JUNIOR HIGH SCHOOL. Jurnal Inovasi Pendidikan dan Pengajaran (JIPP), [S. l.], v. 1, n. 3, p. 134–144, 2022. DOI: 10.31571/jipp.v1i3.4636. Disponível em: https://journal.ikippgriptk.ac.id/index.php/JIPP/article/view/4636. Acesso em: 28 dec. 2024.